25225546 has 4 divisors (see below), whose sum is σ = 37838322. Its totient is φ = 12612772.

The previous prime is 25225523. The next prime is 25225553. The reversal of 25225546 is 64552252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 3463321 = 4665^2 + 1861^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306385 + ... + 6306388.

Almost surely, 2^25225546 is an apocalyptic number.

25225546 is a deficient number, since it is larger than the sum of its proper divisors (12612776).

25225546 is a wasteful number, since it uses less digits than its factorization.

25225546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12612775.

The product of its digits is 24000, while the sum is 31.

The square root of 25225546 is about 5022.5039571911. The cubic root of 25225546 is about 293.2784765990.

Adding to 25225546 its reverse (64552252), we get a palindrome (89777798).

The spelling of 25225546 in words is "twenty-five million, two hundred twenty-five thousand, five hundred forty-six".